A'splayers prepare for morning workouts at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert to prepare for the upcoming season. less

A'splayers prepare for morning workouts at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona ... more

A's manager Bob Melvin with catchers behind, watches as pitchers throw at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's manager Bob Melvin with catchers behind, watches as pitchers throw at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their ... more

A's catchers during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catchers during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert ... more

A's infielder Addison Russell, (17) finishes up batting practice and prepares to head to the clubhouse at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert to prepare for the upcoming season. less

A's infielder Addison Russell, (17) finishes up batting practice and prepares to head to the clubhouse at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's ... more

A's pitchers Jim Johnson, (45) (right) and Luke Gregerson, (44) just behind Gregerson, during warm up drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitchers Jim Johnson, (45) (right) and Luke Gregerson, (44) just behind Gregerson, during warm up drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League ... more

A's catcher Dusty Brown, (74) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Dusty Brown, (74) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the ... more

A's catcher Dusty Brown, (74) heads off to practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Dusty Brown, (74) heads off to practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the ... more

A's catcher Derek Norris, (36) gears up for practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Derek Norris, (36) gears up for practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Jim Johnson, (45) throws during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Derek Norris, (36) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Derek Norris, (36) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's manager Bob Melvin keeps a close watch on practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's manager Bob Melvin keeps a close watch on practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Jose Flores, (72) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Jose Flores, (72) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Fernando Abad, (56) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Fernando Abad, (56) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Luke Gregerson, (44) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Luke Gregerson, (44) during practice drills at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Fernando Rodriguez, (33) during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Fernando Rodriguez, (33) during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Scott Kazmir, (26) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's pitcher Philip Humber, (47) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's pitcher Philip Humber, (47) throws during practice at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in ... more

A's catcher Dusty Brown, (74) at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

A's catcher Dusty Brown, (74) at the Papago Baseball Facility in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in ... more

A's pitcher Sonny Gray, (54) throws at the Papago Baseball Facility at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

Shortstop Addison Russell, (17) takes grounders during practice at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert to prepare for the upcoming season. less

Pitcher Joe Savery, (50) throws a few in the outfield, at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

Pitcher Joe Savery, (50) throws a few in the outfield, at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the ... more

Photo: The Chronicle

Pitcher Joe Savery, (50) throws a few in the outfield, at Phoenix... Photo-5905403.80243 - NewsTimes

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Sam Fuld, (29) prepares for batting practice at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona Desert in preparation for the upcoming season. less

Sam Fuld, (29) prepares for batting practice at Phoenix Municipal Stadium in Phoenix, Arizona on Tuesday Feb. 18, 2014. Major League Baseball's Oakland Athletics continue their spring training in the Arizona ... more